Abstract: A composite panel including a fibrous glass board and foamed-in-place plastic foam has a perforated sheet at the foam-fiberglass interface, there being at least two holes per square inch in the perforated sheet, the diameter of the holes being less than 0.06 of an inch, and the amount of open area represented by the holes being less than 1.5 percent of the total area of the sheet.

Abstract: A floor mat for an automotive vehicle is provided having a relatively thin, flexible sheet-form main body and a rigidifying rib structure formed with or secured thereto in fixed relationship. The rigidifying rib structure is fabricated from or formed by elongated elements that are effectively rigid and thereby render the otherwise flexible main body essentially inflexible. The materials selected to form the rib structure preferably have a resilient characteristic, such as spring steel wire rod, to enhance the mat's ability to maintain itself in a desired smooth, flat configuration on a vehicle's floor. The rib structure is of a configuration to rigidify the main body in two generally perpendicular directions to resist displacement in all directions through the essential rigid rib encountering of any obstructions associated with the vehicle floor and the resilient characteristic of the rib accommodating excessive displacing forces and tending to return the main body of the mat to its original configuration.

Abstract: Heat-resistant pressure-sensitive adhesives are used to form the closure of a heat-shrinkable wrap-around sleeve. Suitable pressure-sensitive adhesives include silicone-based adhesives, thermosetting acrylic adhesives, and thermosetting rubber/resin adhesives. However, silicone-based adhesives are not claimed herein, but are claimed in my co-pending application, Ser. No. 944,887, filed Sept. 22, 1978, now U.S. Patent No. 4,268,559, issued on May 19, 1981.

Abstract: A non-invasive birth control device in the form of a custom-formed, valved cervical cap is disclosed. The cervical cap comprises a cup-shaped elastomeric shell substantially complementary with contiguous surface of portio vaginalis cervicis when in contact therewith, having an aperture at the apex of the shell, and a depending skirt that is thinner than said shell and is provided with a plurality of spaced slits. The aperture is covered by an elastomeric web secured to the shell and defines, together with the shell, a one-way valve means having a discharge port offset from the aperture. The cervical cap can be fabricated from a specially designed blank of a thermoplastic elastomeric material using a replica of cervix uteri as a mold.

Abstract: A carrier is coated with a suitable adhesive. That surface of the adhesive which is to be placed in contact with the support for the membrane is united with an assembly consisting of a film, and a sheet of material which does not bond to the film. The sheet is impermeable to the hot adhesive, and both film and sheet have perforations which are in substantial alignment. The sheet is positioned on the outside of the assembly, facing toward the support. The adhesive is exposed through the aligned perforations and provides continuity of material throughout the membrane. The imperforated portions of film and sheet can slide relative to each other, thus providing a so-called "limited-slip sheet" for the membrane. Preferably, the impermeable sheet is preperforated, while the perforations in the film are created by the heat of the adhesive, as both film and sheet are applied simultaneously with the coatings of the carrier by the adhesive.

Abstract: An improved support web, particularly for use in the construction of furniture, comprises a band, which may be made of plastic material having spaced, parallel, longitudinal reinforcing threads such as glass fibers embedded therein and a connecting member of plastic material at least one end of the band of which is formed in one piece about the band end by a molding or casting process to surround, on all sides, a folded end of the band having its layers secured together, there being holes passing through the folded end of the band which become filled with material of the connecting member. The connecting member has a strong connection with the band and may be nailed or stapled to the frame of a piece of furniture to connect the support web to the frame. Alternatively, the connecting member may be provided with a hook formation or with a molded-in hook or hooks for connecting it to a frame.

Abstract: Method and apparatus for continuous manufacture of a laminate comprising a layer of a conductive polymer and at least one electrode. A tape electrode and a heat-softened conductive polymer are fed simultaneously through an elongate aperture of substantially closed cross-section formed by a plurality of rollers, whereby there is produced a laminate in which the conductive polymer layer has a controlled cross-section. Preferably the electrode has a plurality of openings therein and is fed through the aperture so that there is at least one point on the electrode, as it passes through the aperture, which coincides with an angle which is formed by two of said rollers and which is at most 90.degree.. Particularly good results are obtained when the roller which contacts the electrode has a plurality of indentations therein, so that conductive polymer not only penetrates into the openings in the electrode but also passes through those openings which overlie the indentations in the roller.

Abstract: Composite structures made up of a plurality of superimposed layers, one a layer of polyolefin fibers, another a polyolefin film, and the third a reinforcing element interposed between the fiber layer and the polyolefin film are disclosed, as is a particular process for making the composite structures.

Abstract: Disclosed is a method for delineating zones on the surface of thermoplastic gratings. The method comprises inserting in the grate openings a removable closure member adapted to interlock with the grating and close the opening. The removable closure member is distinguishable from the grating in color and when a plurality of closure members are so inserted in a pattern, they delineate a given zone.

Abstract: Heat-resistant pressure-sensitive adhesives are used to form the closure of a heat-shrinkable wrap-around sleeve. Suitable pressure-sensitive adhesives include silicone-based adhesives and thermosetting adhesives.

Abstract: The invention relates to a shrinkable sleeve device easily assembled with a body to be protected thereby. It comprises a dimensionally heat unstable sheet-like portion to embrace the body with unique means for securing edge portions thereof together. The device is particularly advantageous for application and use in restricted locations and for providing a protective sleeve by which cable ducts will not be unduly impeded.

Abstract: A porous, reinforced, erosion control matting is provided by a relatively open, self-supporting, three-dimensionally looped structure of synthetic filaments having a diameter of at least 0.06 mm., with a backing of a decay-resistant or rot-resistant, comparatively dense web or fabric which is bonded to at least some of the filaments of the matting, and with a lattice or open-mesh reinforcing facing member extending parallel to the backing to provide an upper surface of crossbars onto which the looped synthetic filaments are laid so as to be interlocked with the crossbars while extending downwardly between the crossbars to form porous alveolate cells. The matting is highly useful in preventing soil erosion while also being easily manufactured and installed in any given location.

Abstract: A composite board structure comprising a corrugated fiberboard consisting of at least one liner and at least one corrugated paper medium bonded to the liner by means of a layer of a hot melt adhesive material, the liner being covered with a facing web of a woven or unwoven fabric which has its fibers scatteringly filling in perforations formed in the liner and sticking to the layer of the hot melt adhesive material so as to be securely fastened to the liner without use of any adhesive material between the liner and the facing web.

Abstract: A pneumatic tire includes a breaker belt interposed between the tread and the tire carcass, the belt including opposing elastic layers with a sheet interposed between the layers, the sheet having a plurality of perforations therein and comprising a material having a relatively high modulus of elasticity with respect to the layers.

Abstract: A cord composite suitable for rubber tire reinforcement comprised of a plurality of plies of yarns selectively cabled in a manner so that, upon application of longitudinal stress, at the initial elongation of the cable, the primary load bearing ply is a polyester or a nylon yarn and so that after appreciable elongation of the cable, the primary load bearing yarn is an aramid yarn. The invention further relates to a pneumatic rubber tire, industrial belt or hose having a carcass containing a fabric of such a cord as a reinforcing member.

Abstract: An elongated extruded strip adapted to be mechanically secured to a slotted sheet-like substrate is provided by extruding an elongated thermoplastic strip having a body portion which includes a rear face having a rearwardly projecting rail and then notching out longitudinally spaced portions of the rail to provide longitudinally spaced teeth. The strip is pressed against the sheet to force the teeth through the slots and heat is applied to the portions of the teeth which project through the slots to form a head or bead on the teeth and thereby mechanically secure the strip to the substrate. The strip is preferably formed to include at least one side support and/or at least one resilient adhesive tape may be used to allow the strip to deform when pressed against the substrate to force the teeth to project further through the slots to insure a tight securement. The teeth may have an arrowhead when the sheet-like substrate is of uniform thickness.

Abstract: Plate-shaped roofing element comprising: adhesive foam plastic having a surface facing upwards in a mounted position and having a covering plate comprised of bituminous roofing felt with surface facing the element being covered with a layer of gravel or pebbles, and a layer of glass fiber contacting said surface of said roofing felt and having through holes through which the adhesive foam plastic during foaming becomes adherent to said bituminous roofing felt.

Abstract: A tufted pile fabric for use indoors or outdoors as a substantially permanent floor covering. The tufted pile fabric is made entirely from man-made or synthetic materials and includes a synthetic plastic primary backing, and a synthetic plastic secondary backing, laminated together by a hot melt adhesive to form a relatively rigid impervious sheet. The structure is then provided with a plurality of perforations through the substantially impervious sheet comprising the secondary backing, the hot melt adhesive and the primary backing to give the fabric a softer hand and breathability. The tufted pile fabric may then be adhesively secured to a floor structure by a water based adhesive, inert to the primary and secondary backings and hot melt adhesive, with the water evaporating through the perforations to set the adhesive and thereby avoid puckers and edge rippling due to unbonding the pile fabric from the floor structure.

Abstract: A unitary, composite, multi-layer work area is provided which can support a plurality of work pieces thereon. The work area includes a structure which comprises a pair of outer protective covering layers and inner rigid core means, respectively. Preferably, a pair of networks are disposed between the outer covering layers and the inner core means. Either or both of the networks can be replaced with a perforated, crush-proof structure. The layers of the structure are uniformly joined one to the other substantially along the entirety of their respective adjacent surfaces to form a laminate-like support structure. Fastening means passing within the subject work area are employed to maintain the work pieces in the requisite position. The structure can be supported in a fixed or in a plurality of adjustable positions with respect to the horizontal axis.

Abstract: A reinforced low density thermoplastic foam sheet is disclosed. The sheet is a laminate comprising outer laminae of low density thermoplastic foam and a thermoplastic film having about the same tackifying temperature as the foam and a central layer comprising a reinforcing net or net-like structure.

Abstract: When constructing an electrical or electronic device or mechanical device such as a tape recorder, the framework therefore must be provided with various projections for installing various components to be contained therein, or means such as spring means for actuating the mechanism incorporated thereon must be previously provided on the framework. The present disclosure relates to those projections made of synthetic resin which can be integrally formed on a metallic plate in the step of molding and also to those molded projections which may not deform their configuration by the shrinking force of the synthetic resin when molded integrally with the plate to form the framework.

Abstract: The invention relates to a method for the production of insulating elements for the walls and ceilings, made from facing layers fitted to a frame. Between the facing layers, a perforated foam-permeable, optionally reinforced, intermediate layer is inserted. One of the two chambers thus formed is subsequently filled with foam. The other chamber is filled with a foam permeated granular material.

Abstract: A flexible non-skid strip is constituted by a main body extending along the length of the strip and adapted to be secured to the tread portion of a stair, a forward edge anchoring portion coextending with the main body parallel to and spaced from the main body and adapted to be secured to the riser of the stair, a connection portion integrally connecting the main body and anchoring portion together and adapted to bend about the stair edge of said stair so as to cover the stair edge, a web member integrally secured to the underside of the main body and anchoring portion and being formed of a bendable material having rigidity, and a non-skid top surface portion on the upper surface of the main body.

Abstract: A composite structure having a coating of thermoplastic material on a substantially inflexible substrate is disclosed. The composite structure comprises (a) a substantially inflexible substrate having a plurality of orifices in the surfaces thereof that is coated, the orifices being of a shape such that, at least in part, the cross-sectional area of the orifices increases as the distance from the surface of the substrate increases, and (b) a coating of solid thermoplastic material on the surface of the substrate. The thermoplastic material extends into the orifices at least as far as into the portion of the orifice of increasing cross-sectional area. Preferably the cross-sectional area of the orifices is greater than 0.005 square inches and the thickness of the coating is at least 10 mils. The substrate is preferably a cellulosic material, e.g., wood, hardboard plywood and the like, or metal. The thermoplastic material may be asphalt, bitumen, tar or a thermoplastic polymer, especially polyethylene.

Abstract: In the making of vehicle bodies such as truck and trailer bodies, the roof sheets are secured to the roof bows by means of a hot melt adhesive. Premature cooling of the adhesive which otherwise does not allow sufficient time to position the roof sheet and then mate it with the roof bows properly after the adhesive is applied, is prevented by employing a heat-insulating layer of glass fiber scrim cloth on the roof bows and upon which the hot melt adhesive is applied. Temporary clamping pressure forces the hot melt adhesive through the pores of the scrim cloth and into contact with the roof bows whereupon it rapidly cools and sets. The presence of the scrim cloth provides a substantial increase in the otherwise unacceptably low bonding strength of the hot melt adhesive.